A flow guide element, a suction valve assembly, a handle and an endoscope of an endoscope

Abstract

The present invention provides a flow guide element, a suction valve assembly, a handle and an endoscope of an endoscope, comprising a main body, an input interface, an output interface, a first connection part and a second connection part are arranged on the main body, a flow guide channel is arranged in the main body, the input interface is connected with the output interface through the flow guide channel, the first connection part is located between the output interface and the second connection part, and the first connection part and the second connection part are respectively used to connect with the endoscope handle shell to achieve the restriction of the movable stroke of the input interface. The present invention can reduce the local force load on the flow guide element when the sample collection bottle generates a force on the flow guide element through the connection and cooperation of the first connection part, the second connection part and the endoscope handle shell, so that the flow guide element can withstand a larger force without being damaged; at the same time, the movable stroke of the input interface caused by the vibration transmitted by the flow guide element is suppressed to ensure the connection stability between the input interface and the valve body.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to a flow guiding element, a suction valve assembly, a handle and an endoscope of an endoscope. Background Art

[0002] Endoscope is one of the important medical devices in modern minimally invasive surgery. It can be inserted into the human body cavity to take images, treat or absorb fluids from the patient's lesions, providing doctors with sufficient diagnostic information to treat diseases.

[0003] However, the applicant discovered during the process of realizing the present invention that, in the existing endoscopes, when performing sample aspiration, the aspiration control work is generally completed by cooperating with a suction valve assembly provided in the handle, such as a suction valve assembly, an endoscope handle and an endoscope disclosed in Chinese Patent Publication No. CN115104998A. However, the aspiration control work generally requires an external sample collection bottle and a negative pressure source to cooperate with the suction valve assembly to complete the work. When the external sample collection bottle and the negative pressure source are connected, the original structural balance of the suction valve assembly and its related components is easily destroyed due to the structural limitations of the endoscope itself, resulting in reduced safety and stability in the use of the endoscope. Summary of the invention

[0004] The purpose of the present application is to provide a flow guide element, a suction valve assembly, a handle and an endoscope of an endoscope to solve the above-mentioned technical problems existing in the prior art, mainly including the following four aspects:

[0005] A first aspect of the present application provides a flow-guiding element for an endoscope, comprising a main body, on which an input interface, an output interface, a first connecting part and a second connecting part are provided, a flow-guiding channel is provided in the main body, the input interface is connected with the output interface through the flow-guiding channel, the first connecting part is located between the output interface and the second connecting part, and the first connecting part and the second connecting part are respectively used to connect with an endoscope handle housing to limit the movable stroke of the input interface.

[0006] Furthermore, the output interface, the first connecting portion and the second connecting portion are coaxially arranged.

[0007] Furthermore, a positioning portion is provided on the main body, and the positioning portion is used to cooperate with the shell to limit the installation position of the main body.

[0008] Furthermore, the positioning portion is a protrusion or a groove arranged on the main body.

[0009] Furthermore, a linkage portion is provided on the input interface, and the linkage portion is used to cooperate with a connection object of the input interface to achieve synchronous movement of the input interface and the connection object in the installation direction.

[0010] Furthermore, the output interface is provided with reinforcing ribs, and the reinforcing ribs are provided along the length direction of the output interface.

[0011] Furthermore, the input interface is located between the first connecting portion and the second connecting portion.

[0012] The second aspect of the present application provides an endoscope suction valve assembly, including a valve body and the above-mentioned guide element, wherein the output port of the valve body is connected to the input interface of the guide element, a linkage part is provided on the guide element, and a linkage matching part matching the linkage part is provided on the output port, and the linkage part and the linkage matching part cooperate to realize the synchronous movement of the input interface and the output port in the installation direction.

[0013] The third aspect of the present application provides a handle for an endoscope, comprising a shell, a through hole being provided on the shell, a connecting and fitting portion being provided inside the shell, the handle also comprising the above-mentioned suction valve assembly or the above-mentioned flow guiding element, the flow guiding element being provided through the through hole, the main body being provided inside the shell, the output interface being located outside the shell, the first connecting portion being connected correspondingly to the through hole, and the second connecting portion being connected correspondingly to the connecting and fitting portion.

[0014] A fourth aspect of the present application provides an endoscope, characterized in that it comprises an insertion portion and the above-mentioned handle, wherein the distal end of the handle is connected to the proximal end of the insertion portion.

[0015] Compared with the prior art, the present invention has at least the following technical effects:

[0016] The present invention is connected and cooperated through the first connecting part, the second connecting part and the endoscope handle shell. When the sample collection bottle generates a force on the guide element, the distance between the force fulcrum and the sample collection bottle is the action force arm, and the distance between the force fulcrum and the force suppression point is the suppression force arm. The two resist each other, reducing the local force load on the guide element, so that the guide element can withstand a larger force without being damaged; at the same time, the activity stroke of the input interface caused by the vibration transmitted by the guide element is suppressed, thereby ensuring the connection stability between the input interface and the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic structural diagram of the flow guiding element of the present invention;

[0019] Figure 2is a front view of the flow guide element of the present invention;

[0020] Figure 3 yes Figure 2 Middle AA section view;

[0021] Figure 4 It is a schematic structural diagram of the endoscope of the present invention;

[0022] Figure 5 It is a schematic structural diagram of the endoscope of the present invention (the sample collection bottle and the housing are separated);

[0023] Figure 6 It is a schematic diagram of the internal structure of the endoscope handle of the present invention;

[0024] Figure 7 It is a schematic diagram of the connection between the suction valve assembly and the housing of the present invention;

[0025] Figure 8 It is a schematic diagram of the installation of the suction valve assembly and the housing of the present invention;

[0026] Fig. 9 It is a schematic diagram of the connection between the valve body and the flow guide element of the present invention;

[0027] In the figure,

[0028] 100. flow guiding element; 110. main body; 111. flow guiding channel; 120. input interface; 121. avoidance groove; 130. output interface; 131. reinforcing rib; 140. first connecting part; 150. second connecting part; 160. positioning part; 170. linkage part; 210. handle; 211. shell; 212. valve body; 213. output port; 214. linkage matching part; 215. through hole; 220. insertion part; 300. sample collection bottle. DETAILED DESCRIPTION

[0029] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] In addition, in the present invention, "proximal end" and "distal end" refer to the far and near positions of the structure relative to human operation in the use environment, so as to facilitate the description of the positional relationship between components and facilitate understanding; for the same component, "proximal end" and "distal end" are the relative positional relationship of the component, not absolute; therefore, it should be understood from the perspective of realizing the principles of the present invention, and should not deviate from the essence of the present invention.

[0034] Embodiment 1:

[0035] The present application embodiment provides a flow guide element 100 of an endoscope, such as Figure 1 to Figure 3 As shown, it includes a main body 110, on which an input interface 120, an output interface 130, a first connecting part 140 and a second connecting part 150 are arranged, and a guide channel 111 is arranged in the main body 110, and the input interface 120 is connected with the output interface 130 through the guide channel 111, and the first connecting part 140 is located between the output interface 130 and the second connecting part 150, and the first connecting part 140 and the second connecting part 150 are respectively used to connect with the shell 211 of the endoscope handle 210 to limit the movable stroke of the input interface 120.

[0036] In the existing endoscope, when performing sample suction, the suction control work is generally completed by cooperating with the suction valve assembly set in the handle 210, but the suction control work generally requires an external sample collection bottle 300 and a negative pressure source to cooperate with the suction valve assembly to complete it. Specifically, as disclosed in Chinese Patent Publication No. CN115104998A, a suction valve assembly, an endoscope handle and an endoscope, wherein the suction nozzle in the suction valve is only connected to the valve seat. When the sample collection bottle 300 and the negative pressure source are disassembled and assembled on the suction nozzle, since the force point is at the connection between the suction nozzle and the valve seat, and the distance between the valve seat and the sample collection bottle 300 is the gravity arm of the sample collection bottle and the negative pressure source, the force is concentrated at the connection between the suction nozzle and the valve seat, which is very easy to install and use. , causing the connection between the suction nozzle and the valve seat to bend and break. At the same time, when the end of the sample collection bottle 300 is subjected to force and vibration, the vibration will be transmitted to the suction valve assembly through the suction nozzle, causing the original structural balance of the suction valve assembly to be destroyed, especially the connection is prone to loosening, resulting in reduced safety and stability in the use of the endoscope; in this embodiment, the guide element 100 can be used as a suction nozzle, the input interface 120 of the guide element 100 is used to communicate with the valve body 212, the output interface 130 is used to communicate with the sample collection bottle 300, the first connecting portion 140 is used as a first connecting point for fixed connection with the endoscope handle 210, the second connecting portion 150 is used as a second connecting point for fixed connection with the endoscope handle 210, and a first connecting portion 150 is set The connecting portion 140 is located between the output interface 130 and the second connecting portion 150, so that during use, when the sample collection bottle 300 is disassembled and assembled, the fixed connection point between the first connecting portion 140 and the endoscope handle 210 is used as a force fulcrum, and the fixed connection point between the second connecting portion 150 and the endoscope handle 210 is used as a force suppression point. When the sample collection bottle 300 exerts a force on the flow guide element 100, the distance between the force fulcrum and the sample collection bottle 300 is the force arm, and the distance between the force fulcrum and the force suppression point is the suppression arm. The two resist each other to avoid excessive local force load on the flow guide element 100, so that the flow guide element 100 can withstand a larger force without being damaged. At the same time, for the flow guide element 100 that is connected to the sample When the connection end of the collecting bottle 300 is subjected to force and generates vibration, the two force points, the force fulcrum and the force suppression point, cooperate to suppress the movable stroke of the input interface 120 caused by the vibration transmitted by the flow guiding element 100, thereby ensuring the connection stability between the input interface 120 and the valve body 212; as an example, a preset gap may be reserved between the first connecting portion 140 and the endoscope handle 210, and the second connecting portion 150 and the endoscope handle 210 are relatively fixedly connected. When the flow guiding element 100 generates vibration, the amplitude gradually decreases from the sample collecting bottle 300 to the second connecting portion 150, and is suppressed by the preset gap, thereby effectively constraining the amplitude of the input interface 120, thereby ensuring the connection stability between the input interface 120 and the valve body 212;As another example, the first connection portion 140 and the endoscope handle 210 may be relatively fixedly connected, and a preset gap may be reserved between the second connection portion 150 and the endoscope handle 210. When the flow guiding element 100 vibrates, the amplitude gradually decreases from the sample collecting bottle 300 to the first connection portion 140, and is suppressed by the preset gap, thereby effectively constraining the amplitude of the input interface 120 and ensuring the connection stability between the input interface 120 and the valve body 212. As another example, the first connection portion 140 and the endoscope handle 210 may be relatively fixedly connected, and the second connection portion 150 and the endoscope handle 210 may be relatively fixedly connected. When the flow guiding element 100 vibrates, the amplitude gradually decreases from the sample collecting bottle 300 to the first connection portion 140, and is suppressed by the fixed connection of the first connection portion 140 and the second connection portion 150, thereby ensuring that the input interface located between the first connection portion 140 and the second connection portion 150 hardly vibrates, thereby improving the connection stability between the input interface 120 and the valve body 212. ;

[0037] Specifically, in order to increase the upper limit of the force strength of the guide element 100, the output interface 130, the first connection part 140 and the second connection part 150 can be coaxially arranged to increase the restraining torque between the first connection part 140 and the second connection part 150, so that the guide element 100 can withstand greater external forces without being damaged.

[0038] In some embodiments, in order to facilitate the installation of the guide element 100 in the endoscope handle 210, the main body 110 portion between the first connecting portion 140 and the second connecting portion 150 can be designed with an axis having a straight line, a broken line or a curved structure to avoid interference with other components in the endoscope handle 210, thereby ensuring the normal use of each component in the endoscope handle 210 and improving the space utilization in the endoscope handle 210.

[0039] Specifically, during the installation process, the flow guide element 100 and the suction valve body 212 generally need to be connected and fixed, and then synchronously transferred into the housing 211 of the endoscope handle 210. Therefore, in order to facilitate the synchronous installation of the flow guide element 100 and the suction valve body 212 into the housing 211, a positioning portion 160 can be provided on the main body 110, such as Figure 7 and Figure 8 As shown, the positioning portion 160 cooperates with the shell 211 to limit the relative position between the main body 110 and the shell 211, and at the same time assists in determining the installation position between the suction valve body 212 and the shell 211, thereby facilitating the synchronous fixed connection of the guide element 100 and the suction valve body 212 to the shell 211.

[0040] Specifically, the positioning portion 160 can be set as a protrusion on the main body 110, and accordingly, a groove matching the protrusion is set on the shell 211. The protrusion is limited by the groove so that the protrusion can only move in the groove along the installation direction, thereby limiting the installation position of the main body 110; in addition, setting the positioning portion 160 as a protrusion will not weaken the wall thickness of the guide channel in the main body 110, thereby ensuring the mechanical strength of the main body 110 and the guide channel 111.

[0041] In some embodiments, the positioning portion 160 can also be set as a groove on the main body 110. Correspondingly, a protrusion matching the groove is set on the shell 211. The groove is used to limit the mutual positioning between the protrusions, so that the protrusion can only move along the installation direction within the groove, thereby achieving the limitation of the installation position of the main body 110.

[0042] Specifically, in order to improve the connection stability between the guide element 100 and the valve body 212, a linkage part 170 can be provided on the input interface 120. The linkage part 170 cooperates with the valve body 212 to be connected. When the guide element 100 and the valve body 212 are synchronously moved toward the shell 211 along the installation direction for installation and fixation, the guide element 100 needs to be passed through the shell 211 first. After the guide element 100 passes through the shell 211, interference is likely to occur between the guide element 100 and the shell 211 during the movement along the installation direction, and the interference force is transmitted to the connection between the guide element 100 and the valve body 212. At this time, the linkage part 170 can resist the interference force. On the basis of realizing the synchronous movement of the input interface 120 and the valve body 212 in the installation direction, the stable connection between the input interface 120 and the valve body 212 is ensured.

[0043] In some embodiments, in order to ensure that the linkage part 170 can stably resist the interference force, the linkage part 170 can be set to be located in the first radial direction of the input interface 120, the installation direction and the axial direction of the input interface 120 are in the first plane, the first radial direction and the axial direction of the input interface 120 are in the second plane, and the first plane and the second plane intersect; further, in order to achieve maximum resistance of the linkage part 170 to the interference force, the first plane and the second plane can be set to be perpendicular to each other.

[0044] In some embodiments, to further improve the mechanical strength of the guide element 100 , a reinforcing rib 131 may be provided on the output interface 130 , and the reinforcing rib 131 may be controlled to be provided along the length direction of the output interface 130 , thereby increasing the upper force limit of the guide element 100 .

[0045] Specifically, in order to improve the connection stability between the input interface 120 and the connection object, the input interface 120 can be set between the first connection part 140 and the second connection part 150, and the first connection part 140 and the second connection part 150 are respectively matched with the shell 211 to suppress the activity stroke of the input interface 120 caused by the vibration transmitted by the guide element 100, thereby realizing the improvement of the connection stability between the input interface 120 and the connection object.

[0046] Embodiment 2:

[0047] The present application embodiment provides a suction valve assembly of an endoscope, such as Figure 1 to Figure 3 ,as well as Figure 7 to Figure 9 As shown, it includes a valve body 212 and the guide element 100 in Example 1, the output port 213 of the valve body 212 is connected to the input interface 120 of the guide element 100, the guide element 100 is provided with a linkage part 170, and the output port 213 is provided with a linkage matching part 214 matching the linkage part 170, the linkage part 170 and the linkage matching part 214 cooperate to realize the synchronous movement of the input interface 120 and the output port 213 in the installation direction.

[0048] Specifically, the linkage fitting portion 214 can be set as an abutment surface located on the output port 213 of the valve body 212, and the linkage portion 170 is set in the first radial direction of the input interface 120. The first radial direction and the axial direction of the input interface 120 are in the second plane, and the second plane is parallel to the abutment surface. Therefore, when the guide element 100 and the valve body 212 move synchronously along the installation direction, the abutment surface can abut against the linkage portion 170, pushing the linkage portion 170 to move synchronously along the installation direction, thereby avoiding bending and separation of the input interface 120 and the output port 213 due to interference force.

[0049] In some embodiments, the linkage portion 170 can also be set as an abutment surface located on the input interface 120, and the linkage matching portion 214 is set on the first radial direction of the output port 213 (corresponding to the first radial direction of the input interface 120), the first radial direction and the axial direction of the input interface 120 are in the second plane, and the second plane is parallel to the abutment surface, so that the interference force can also be suppressed to ensure that the guide element 100 and the valve body 212 move synchronously along the installation direction.

[0050] In some embodiments, one of the linkage fitting portion 214 and the linkage portion 170 can be set as a protrusion, and the other of the linkage fitting portion 214 and the linkage portion 170 can be set as a groove matching the protrusion, and the inner wall surface of the groove serves as abutment surface to achieve synchronous movement of the input interface 120 and the output port 213 in the installation direction.

[0051] Specifically, in order to further improve the connection stability between the guide element 100 and the valve body 212, an avoidance groove 121 can be set on one of the input interface 120 and the output port 213, and the avoidance groove 121 can be used to accommodate and dock the other of the input interface 120 and the output port 213, thereby increasing the connection depth and connection area between the input interface 120 and the output port 213, thereby improving the connection stability between the guide element 100 and the valve body 212.

[0052] Embodiment 3:

[0053] The present application embodiment provides a handle 210 of an endoscope, such as Figure 7 to Figure 9 As shown, it includes a shell 211, a through hole 215 is provided on the shell 211, a connecting and fitting part is provided in the shell 211, the handle 210 also includes the suction valve assembly in Example 2 or the guide element 100 in Example 1, the guide element 100 is arranged through the through hole 215, the main body 110 is arranged in the shell 211, the output interface 130 is located outside the shell 211, the first connecting part 140 is correspondingly connected to the through hole 215, and the second connecting part 150 is correspondingly connected to the connecting and fitting part.

[0054] Specifically, to facilitate the corresponding installation of the second connecting part 150 and the connecting mating part, the second connecting part 150 can be set as a card, and the connecting mating part can be set with a card slot matching the card. Furthermore, a wedge-shaped guide surface can be set on the card, so that the card can be quickly inserted and fixed into the card slot during the installation process.

[0055] Embodiment 4:

[0056] The present application embodiment provides an endoscope, such as Figures 4 to 9 As shown, it includes an insertion part 220 and the handle 210 in Example 3, and the distal end of the handle 210 is connected to the proximal end of the insertion part 220.

[0057] It should be noted that the endoscope in the embodiments of the present application may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiments of the present application do not impose any specific restrictions on the type of endoscope.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flow guide element (100) for an endoscope, It is characterized in that The invention comprises a main body (110), wherein an input interface (120), an output interface (130), a first connection part (140) and a second connection part (150) are arranged on the main body (110); a flow guiding channel (111) is arranged in the main body (110); the input interface (120) is communicated with the output interface (130) through the flow guiding channel (111); the input interface (120) is used to communicate with a valve body (212); the output interface (130) is used to communicate with a sample collection bottle (300); the first connection part (140) is located between the output interface (130) and the second connection part (150); the first connection part (140) and the second connection part (150) are respectively used to connect with a housing (211) of an endoscope handle (210) to limit the movable stroke of the input interface (120).

2. The flow guiding element (100) according to claim 1, It is characterized in that The output interface (130), the first connecting portion (140) and the second connecting portion (150) are coaxially arranged.

3. The flow guiding element (100) according to claim 1, It is characterized in that A positioning portion (160) is provided on the main body (110), and the positioning portion (160) is used to cooperate with the housing (211) to achieve restriction of the installation position of the main body (110).

4. The flow guiding element (100) according to claim 3, It is characterized in that The positioning portion (160) is a protrusion or a groove arranged on the main body (110).

5. The flow guiding element (100) according to any one of claims 1 to 4, It is characterized in that The input interface (120) is provided with a linkage part (170), and the linkage part (170) is used to cooperate with a connection object of the input interface (120) to achieve synchronous movement of the input interface (120) and the connection object in an installation direction.

6. The flow guiding element (100) according to claim 5, It is characterized in that The output interface (130) is provided with a reinforcing rib (131), and the reinforcing rib (131) is provided along the length direction of the output interface (130).

7. The flow guiding element (100) according to any one of claims 1 to 4, It is characterized in that The input interface (120) is located between the first connection portion (140) and the second connection portion (150).

8. A suction valve assembly for an endoscope, It is characterized in that The invention comprises a valve body (212) and a flow guiding element (100) according to any one of claims 1 to 7, wherein an output port (213) of the valve body (212) is connected to an input interface (120) of the flow guiding element (100), a linkage part (170) is provided on the flow guiding element (100), and a linkage matching part (214) matching the linkage part (170) is provided on the output port (213), wherein the linkage part (170) and the linkage matching part (214) cooperate to realize synchronous movement of the input interface (120) and the output port (213) in the installation direction.

9. A handle for an endoscope, It is characterized in that The invention comprises a shell (211), wherein a through hole (215) is provided on the shell (211), and a connecting and matching portion is provided in the shell (211); the handle (210) further comprises the suction valve assembly according to claim 8 or the flow guiding element (100) according to any one of claims 1 to 7, wherein the flow guiding element (100) is arranged through the through hole (215), the main body (110) is arranged in the shell (211), the output interface (130) is located outside the shell (211), the first connecting portion (140) is correspondingly connected to the through hole (215), and the second connecting portion (150) is correspondingly connected to the connecting and matching portion.

10. An endoscope, It is characterized in that It comprises an insertion part (220) and the handle (210) according to claim 9, wherein the distal end of the handle (210) is connected to the proximal end of the insertion part (220).

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